EP2059717B1 - Beleuchtungsvorrichtung - Google Patents

Beleuchtungsvorrichtung Download PDF

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Publication number
EP2059717B1
EP2059717B1 EP07802214.2A EP07802214A EP2059717B1 EP 2059717 B1 EP2059717 B1 EP 2059717B1 EP 07802214 A EP07802214 A EP 07802214A EP 2059717 B1 EP2059717 B1 EP 2059717B1
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EP
European Patent Office
Prior art keywords
lighting device
actuators
housing elements
deformation
actuator
Prior art date
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Not-in-force
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EP07802214.2A
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English (en)
French (fr)
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EP2059717A1 (de
Inventor
Xaveer Claerhout
Barbara Van Biervliet
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KINETURA CONCEPT bvba
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Kinetura Concept bvba
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Priority to PL07802214T priority Critical patent/PL2059717T3/pl
Publication of EP2059717A1 publication Critical patent/EP2059717A1/de
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/02—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages with provision for adjustment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S6/00—Lighting devices intended to be free-standing
    • F21S6/004—Lighting devices intended to be free-standing with a lamp housing in direct contact with the floor or ground
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S6/00—Lighting devices intended to be free-standing
    • F21S6/005—Lighting devices intended to be free-standing with a lamp housing maintained at a distance from the floor or ground via a support, e.g. standing lamp for ambient lighting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes

Definitions

  • the invention relates to a lighting device, comprising
  • a first category is patent applications with the aim of making the light source in the lighting device or the light beams themselves move in a certain lighting device, in order to obtain a certain directed light emission or light effect in this way. This is applicable in the lighting of, for example, discotheques or for directing motor car headlamps, as described in Canadian Patent Application 2172357 or European Patent Application No. 0860650 .
  • EP 1312967 a lighting device is disclosed with a deformable housing
  • a lighting system comprising a laser light generator and a series of motor-driven mirrors, which are directed in such a way that they deflect a laser light beam in different directions in order to create a light show.
  • the aim is to be able to manipulate the light source and its light effect, but the object is not intended to achieve a deformation or a movement of the lighting device per se or certain parts of said lighting device.
  • the deformation or movement of the lighting fitting or certain parts of it is purely a means for obtaining the desired light effect, and is not an aim pertaining to shape per se.
  • a second category consists of covering or protecting the light source of the lighting device by a structure that is slid in front of the light source.
  • the aim of this category is merely to protect or screen off the light source behind it, without providing any other shape movement on it.
  • a lamp such as a fog lamp for a vehicle
  • a housing that is provided for mounting a series of parallel louvers.
  • the louvers are controlled by a heat-driven actuator. When this is heated up, the actuator serves to pivot the louvers into an open position. When the lamp has been deactivated, the actuator stops the heating, and the louvers close automatically in order to protect the lens by means of a spring as the actuator cools down.
  • a third category consists of lighting devices wherein certain parts of the lighting device assume a different shape when the light source is switched on.
  • bimetal that deforms through the heat given off by the light source and through that deformation sets the lamp itself or parts of the lighting fitting in motion.
  • the housing of such lighting devices is consequently controlled by means of the heat of the light source itself, which makes said housing open, for example, or makes it close when it cools down.
  • a lighting device can be used, for example, for imitating a flower. When the light is off, the leaves of the flower are folded up, and when the light source is switched on, deformation of the bimetal will make the leaves open, so that said leaves form a flower.
  • an artificial flower is disclosed that is combined with a lighting element, wherein the petals or plant leaves are made of a heat-sensitive material, such as a bimetal, wherein the shape or arrangement changes through the effect of the heat source.
  • the object of the invention is to provide a lighting device according to the preamble of claim 1, wherein the deformation of one or more housing elements can occur irrespective of the distance from the light sources and the type of light source, in order to be able to achieve a large number of applications, such as, inter alia, also with LED lighting or low-energy light bulb lighting and all other types of lighting.
  • the object of the invention is achieved by providing a lighting device, comprising
  • the one or more actuators used are elements that are small but powerful and through external influence such as, inter alia, electric current, perform a 2-dimensional or 3-dimensional movement with a certain force and at a certain speed. This movement is launched against the material to be deformed, which slowly deforms as a result until the movement of the actuator has ended, and the deformation therefore also comes to a standstill at a certain point.
  • This gradual deformation has the advantage that there are no abrupt movements that can give rise to damage or breakage of one or more parts of the lighting device or danger for the user.
  • a lighting device wherein the deformation of one or more housing elements can be achieved irrespective of the distance from the light sources and the type of light source, in order to be able to achieve a large number of uses such as, inter alia, also with LED lighting or lighting of an energy-saving light bulb, and all other types of lighting.
  • one, or more power sources are provided for activating the actuator(s) and for switching on the one or more light sources, these one or more power sources being the same.
  • a relay can be provided for enabling the actuator(s) to go into operation a certain time before or after activation of the actuator(s).
  • one or more power sources are provided for activating the actuator(s) and for switching on the one or more light sources, these one or more power sources being different.
  • the one or more power sources that are provided for activating the said actuator(s) to be put into operation at a time to be set.
  • This putting into operation of the one or more power sources that are provided for activating the said actuator(s) can run according to a certain previously set cycle here.
  • the one or more actuators are provided for performing a return movement of the one or more housing elements to their original shape.
  • the one or more housing elements can also be made of a material that has the property that it automatically at least partially returns to its original shape after deformation. This has the advantage that the return movement is a natural movement that is unforced and is safe.
  • the one or more actuators are provided for performing a 2-dimensional and/or 3-dimensional movement, said 2-dimensional and/or 3-dimensional movement of the one or more actuators providing a 2-dimensional and/or 3-dimensional deformation of the one or more housing elements.
  • the one or more actuators can be selected, inter alia, from thermal actuators, pneumatic actuators, hydraulic actuators, three-dimensional actuators, electric motors, step motors, piezoelectric translators or linear actuators. However, other types of actuators can also be used.
  • a mechanism leaving some space for motion is preferably provided for preventing premature deformation of the one or more housing elements by a premature movement of the one or more actuators by means of environmental heat.
  • thermal actuators more preferably of the wax motor type.
  • Thermal actuators are small, powerful and easy to fit, and give a gradual movement. Thermal actuators of the wax motor type have the following advantages:
  • the lighting device according to the invention can as well be of the type built-in lighting fitting, standing lighting fitting, suspended lighting fitting or floating lighting fitting.
  • other forms of lighting fittings are possible as well.
  • a lighting device (1a, 1b, 1c, 1d) according to the invention as shown in figures 1 to 10 , 13 and 14 , comprises
  • the deformation of said one or more housing elements (3) is herewith controlled by means of one or more actuators (4a, 4b) (see figures 5 and 6 , 11 and 12 ).
  • an actuator (4a, 4b) a device is meant that converts an input signal (generally an electrical signal) into a movement.
  • one or more power sources are provided for activating the one or more actuators (4a, 4b), and for switching on the one or more light sources (2, 21).
  • Said power sources can either be the same, so that the one or more actuators (4a, 4b) go into operation at the same time, or the actuator(s) (4a, 4b) can be put into operation by means of a relay a certain time before or after activation of the actuator(s) (4a, 4b).
  • the power source(s) can, however, also be selected so as to be different, and consequently in the form of a separate power circuit, which puts the one or more actuators into operation at a set time.
  • the putting into operation of these one or more power sources for activation of the one or more actuators (4a, 4b) can therefore be performed according to a certain preset cycle.
  • the said one or more actuators (4a, 4b), one exemplary embodiment of which is shown in figures 5 and 6 , and in figures 11 and 12 are provided so that they can extend linearly over a certain distance by means of a piston (5), which can move into and out of the housing (6) of the actuator (4a, 4b) between a retracted position, wherein only the head of the piston (5a) is visible, and an extended position, wherein at least a part of the rod (5b) of the piston is also visible.
  • This linear movement is performed over a certain distance with a certain external force and at a certain speed.
  • the external force occurs according to a certain curve and is dependent upon the environmental factors, such as the ambient temperature.
  • the linear movement of the actuator (4a, 4b) as shown in figures 5 and 6 , and figures 11 and 12 can be either a pushing or a pulling movement obtained by the external force.
  • the actuator (4b) as shown in figures 11 and 12 is connected to a shaft (7) by means of a toothed wheel system (8).
  • the toothed wheel system (8) is composed of a toothed bar (8a), the head of the piston (5a) being connected to said toothed bar (8a), and a toothed wheel (8b), a tooth system being provided at least over a part of said toothed wheel (8b), and the teeth of the toothed bar (8a) extending between the teeth of the toothed wheel (8b).
  • the lighting device (1a, 1 b, 1c, 1 d) according to the invention is therefore designed in such a way that the movement of the one or more actuator(s) (4a, 4b) deforms one or more housing elements (3a, 3b, 3c, 3d) by means of a linear movement (see the actuator (4a) as shown in Figures 5 and 6 ) or a rotating movement (see the actuator (4b) as shown in figures 11 and 12 ).
  • the one or more actuators (4a, 4b) can be provided for performing a return movement of the one or more deformed housing elements (3a, 3b, 3c, 3d) to their original shape. Said return movement is more specifically achieved by a thrusting or a returning movement of the one or more pistons (5) of the actuators (4a, 4b).
  • the return movement of the housing elements (3a, 3b, 3c) can, however, also be achieved by the force of gravity or the inherent resilience of the deformed material, which has the property that it at least partially returns automatically to its original shape.
  • a spring system, a counterweight or a magnetic system (not shown in the figures) or another part or system can be provided for achieving the same purpose.
  • the one or more actuators can be selected, inter alia, from thermal actuators, pneumatic actuators, hydraulic actuators, three-dimensional actuators, electric motors, step motors, piezoelectric translators or linear actuators. However, other types of actuators can also be used. If thermal actuators (4a, 4b) are provided, a mechanism leaving some space for motion can be provided in order to avoid premature deformation of the one or more housing elements (3a, 3b, 3c, 3d) by a premature movement of the one or more actuators (4a, 4b) by means of ambient heat. As already described above, thermal actuators of the wax motor type are preferred.
  • the lighting device (1a, 1b, 1c, 1d) according to the invention can be of the built-in lighting fitting type, standing lighting fitting type, suspended lighting fitting type, floating lighting fitting type or any other kind of lighting fitting.
  • one or more light sources (2, 21) themselves can be moved, or even the complete lighting device (1a, 1b, 1c, 1d) can be moved.
  • This can be achieved, for example, by having the light source(s) (2, 21) connected to the deforming housing elements (3a, 3b, 3c, 3d), so that when the deformation occurs through activation of the actuators (4a, 4b), the light sources (2, 21) themselves also move.
  • This can also be achieved by, for example, making the light sources (2) integral with the deformable housing elements (3a, 3b, 3c, 3d) (for example, by means of LED tube lighting or other lighting).
  • the lighting device (1a) as shown in figures 1 to 4 is a standing lighting fitting provided with one light source (2).
  • the light source (2) here consists of a hollow translucent rigid tube (2a) (made of plastic or glass), an elongated lamp (20), for example a fluorescent lamp, being fitted inside said tube (2a).
  • the wiring of the supply and control of the light source (2) and actuators (4a), by means of different or separate power sources (see Figures 5 and 6 ), are also fitted inside said tube (2a). Said wiring can also extend in a separate casing provided inside said tube (2a) (not shown in the figures).
  • the housing elements (3a) consist of four longitudinal strips (for example, made of steel) disposed in a cross shape, which housing elements are fixed both at the top and at the bottom to a starting piece and an end piece (30, 31).
  • the light source (2) extends between said longitudinal strips (3a). After the lighting fitting (1 a) has been switched on, said strips will assume a deformed, bent state, so that the light source (2) gradually can be seen better and/or in a different way.
  • the starting piece (30) is fixed at the bottom to a base plate (32), which can also at the same time possibly contain the transformer needed to provide the light source (2) itself with power.
  • the light source (2) is also fixed at the bottom to the starting piece (30), and thus also the base plate (32) (not shown in the figures), and at the same time, as already stated above, in addition to the transformer that may or may not be required for the light source (2), comprises the wiring of the supply and control of the light source (2) and actuators (4a) (see figures 5 and 6 ).
  • the four longitudinal strips (3a) in the case of the lighting device (1a) shown in figures 1 to 6 are controlled by one actuator (4a), which is provided so that it carries out a linear movement.
  • a bracket (33) is fixed on the upper side of the end piece (31), which bracket has guide apertures in the bottom plate of the bracket.
  • the linear actuator (4a) is fixed on the hollow rigid tube (2a) of the light source (2) by means of rods that project through the guide apertures in the bottom plate (33a) of the bracket (33).
  • the advancing piston (5) of the actuator (4a) On activation of the actuator (4a) and/or the light source (2), the advancing piston (5) of the actuator (4a) will press against the bottom plate of the bracket (33), so that pressure is exerted upon the longitudinal strips (3a) connected to the end piece. By means of this pressure, the longitudinal strips (3a) are forced to assume a bent state, since the underside of the tube (2a) is fixed to the base plate (32).
  • the piston (5) of said actuator (4a) will be retracted, so that the longitudinal strips (3a), on the basis of their natural material resilience, will return to their initial position. Since the piston (5) is retracted gradually, the return movement of the longitudinal strips (3a) will also occur equally gradually. If the return movement of the longitudinal strips (3a) is accidentally blocked, the piston (5) will still return without pulling on the longitudinal strips (3a), which is an advantage as regards safety during closure.
  • the lighting device (1b) is a suspended lighting fitting provided with one light source (2) of the type described in example 1.
  • the deformable housing elements (3b) are leaf-shaped and completely enclose the light source (2). Since the pressure-resistant (rigid) tube (2a) is connected to the leaf-shaped deformable housing elements (3b), and since the leaf-shaped deformable housing elements (3b) are partially connected to each other at the bottom, pressure can be exerted with an actuator (4a) upon the leaf-shaped deformable housing elements, so that the latter are bent outwards, with the result that the light source (2) can be seen better.
  • the lighting device (1c) is a suspended lighting fitting provided with one light source (2) of the type described in example 1.
  • the deformable housing elements (3c) are two longitudinal strips disposed in a V shape, which strips are partially connected to each other at both ends and laterally enclose the light source (2). Since the pressure-resistant (rigid) tube (2a) is connected to the longitudinal strips (3c) at the end where the actuator (4a) is situated, and said longitudinal strips (3c) are connected to each other at both ends in a partial V shape, pressure can be exerted with an actuator (4a) upon the deformable housing elements, so that the latter are bent outwards, with the result that the light source (21) can be seen better and in a different way.
  • the lighting device (1d) is a standing lighting fitting provided with one light source (21), for example of the incandescent lamp or halogen lamp type.
  • the deformable housing elements (3d) are four looped strips overlapping each other at the bottom by the width of the strip (3d), and decreasing slightly in size towards the inside, so that they can swing away from each other.
  • One end of each looped strip (3d) in each case is fixed to a base (34), and the other overlapping end can rotate 90°.
  • the strips (3d) are situated in pairs at right angles to each other, and the light source (21) that is on the axis of rotation is partially enclosed.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Claims (13)

  1. Beleuchtungsvorrichtung (1a, 1b, 1c, 1d), umfassend zumindest eine Lichtquelle (2, 21) und zumindest ein Gehäuseelement (3), welches in Bezug auf die Lichtquelle (2, 21) beweglich ist, wobei die Bewegung des Gehäuseelements (3) mittels Verformung des Gehäuseelements (3) erreicht wird und die Verformung mittels eines oder mehrerer Stellglieder (4a, 4b) gesteuert wird, dadurch gekennzeichnet, dass ein oder mehrere Stellglied(er) (4a, 4b) bereitgestellt sind, um eine Rückwärtsbewegung des Gehäuseelements (3) in seine ursprüngliche Form auszuführen, und dass die Beleuchtungsvorrichtung ein Federsystem, ein Gegengewicht oder ein Magnetsystem und dergleichen umfasst, um die Rückwärtsbewegung des Gehäuseelements (3) zu unterstützen.
  2. Beleuchtungsvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass eine oder mehrere Energiequelle(n) bereitgestellt ist (sind), um das/die Stellglied(er) zu aktivieren und um die eine oder mehreren Lichtquelle(n) (2, 21) einzuschalten, wobei die eine oder mehreren Energiequelle(n) dieselben sind.
  3. Beleuchtungsvorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass ein Relais für das/die Stellglied(er) (4a, 4b) bereitgestellt ist, um eine bestimmte Zeit vor oder nach Aktivierung des Stellglieds/der Stellglieder (4a, 4b) in Betrieb zu gehen.
  4. Beleuchtungsvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass eine oder mehrere Energiequelle(n) bereitgestellt ist (sind), um das/die Stellglied(er) (4a, 4b) zu aktivieren, und um die eine oder mehreren Lichtquelle(n) (2, 21) einzuschalten, wobei die eine oder mehreren Energiequelle(n) unterschiedlich sind.
  5. Beleuchtungsvorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass die eine oder mehreren Energiequelle(n), die zur Aktivierung des Stellglieds/ der Stellglieder (4a, 4b) bereitgestellt ist (sind), zu einer festgesetzten Zeit in Betrieb gesetzt werden.
  6. Beleuchtungsvorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass die Inbetriebsetzung der einen oder mehreren Energiequelle(n), die zur Aktivierung des Stellglieds/der Stellglieder (4a, 4b) bereitgestellt ist (sind), gemäß einem bestimmten voreingestellten Zyklus ausgeführt wird.
  7. Beleuchtungsvorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass das eine oder die mehreren Gehäuseelement (e) (3a, 3b, 3c, 3d) aus einem Material bestehen, welches die Eigenschaft hat, dass es automatisch nach Verformung zumindest teilweise in seine ursprüngliche Form zurückkehrt.
  8. Beleuchtungsvorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass das eine oder die mehreren Stellglied(er) (4a, 4b) bereitgestellt sind, um eine zweidimensionale und/oder dreidimensionale Bewegung auszuführen, wobei die zweidimensionale und/oder dreidimensionale Bewegung des einen Stellglieds oder der mehreren Stellglieder (4a, 4b) eine zweidimensionale oder dreidimensionale Verformung des einen Gehäuseelements oder der mehreren Gehäuseelemente (3, 3b, 3c, 3d) erzeugt.
  9. Beleuchtungsvorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass das eine oder die mehreren Stellglied(er) aus thermischen Stellgliedern, pneumatischen Stellgliedern, hydraulischen Stellgliedern, dreidimensionalen Stellgliedern, Elektromotoren, Schrittmotoren, piezoelektrischen Übersetzern oder linearen Stellgliedern ausgewählt sind.
  10. Beleuchtungsvorrichtung nach Anspruch 9, dadurch gekennzeichnet, dass falls thermische Stellglieder (4a, 4b) bereitgestellt sind, ein Spielmechanismus zur bereitgestellt ist, um eine frühzeitige Verformung des einen Gehäuseelements oder der mehreren Gehäuseelemente (3a, 3b, 3c, 3d) durch eine frühzeitige Bewegung des einen Stellglieds oder der mehreren Stellglieder (4a, 4b) durch Umgebungswärme zu vermeiden.
  11. Beleuchtungsvorrichtung nach Anspruch 9 oder 10, dadurch gekennzeichnet, dass die thermischen Stellglieder (4a, 4b) von einem Wachsmotortyp sind.
  12. Beleuchtungsvorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass mehrere Stellglieder (4a, 4b) bereitgestellt sind um
    - durch Erhöhen der Kraft des Stellglieds/der Stellglieder (4a, 4b) eine bestimmte Verformung des einen Gehäuseelements oder der mehreren Gehäuseelemente (3a, 3b, 3c, 3d) zu verstärken; und/oder
    - die verformbaren Gehäuseelemente zu veranlassen, sich über eine größere Strecke zu verformen, indem zum Beispiel verschiedene Stellglieder (4a, 4b) in Serie miteinander verbunden werden; und/oder
    - ein oder mehrere Gehäuseelemente der Beleuchtungsvorrichtung zu verformen, um einen Kippmoment zu erhalten, das eine Serie von verbundenen Gehäuseelementen veranlasst, sich zu verformen; und/oder
    - eine bestimmte Position des Gehäuseelements (3a, 3b, 3c, 3d) zu verriegeln oder zu entriegeln; und/oder
    - die Verformung der Gehäuseelemente (3a, 3b, 3c, 3d) zu harmonisieren; und/oder
    - zu bewirken, dass die Verformungszyklen der verschiedenen Gehäuseelemente (3a, 3b, 3c, 3d) entsprechend ihrem eigenen Rhythmus verlaufen.
  13. Beleuchtungsvorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Beleuchtungsvorrichtung vom Typ Einbaubeleuchtungskörper, Standbeleuchtungskörper, Hängebeleuchtungskörper oder Schwebebeleuchtungskörper ist.
EP07802214.2A 2006-09-08 2007-09-07 Beleuchtungsvorrichtung Not-in-force EP2059717B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL07802214T PL2059717T3 (pl) 2006-09-08 2007-09-07 Urządzenie oświetleniowe

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE2006/0460A BE1017269A3 (nl) 2006-09-08 2006-09-08 Verlichtingsinrichting.
PCT/EP2007/007834 WO2008028679A1 (en) 2006-09-08 2007-09-07 Lighting device

Publications (2)

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EP2059717A1 EP2059717A1 (de) 2009-05-20
EP2059717B1 true EP2059717B1 (de) 2014-11-19

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EP07802214.2A Not-in-force EP2059717B1 (de) 2006-09-08 2007-09-07 Beleuchtungsvorrichtung

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US (1) US8162505B2 (de)
EP (1) EP2059717B1 (de)
BE (1) BE1017269A3 (de)
DK (1) DK2059717T3 (de)
ES (1) ES2530399T3 (de)
PL (1) PL2059717T3 (de)
WO (1) WO2008028679A1 (de)

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Publication number Priority date Publication date Assignee Title
US8602612B2 (en) 2011-05-12 2013-12-10 Peter Stathis Electrically conductive ball joints and lighting fixtures using the joints
US10677400B2 (en) * 2018-05-07 2020-06-09 Ledvance Llc Edgelit light emitting diode retrofit lamp

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EP2059717A1 (de) 2009-05-20
US20100002442A1 (en) 2010-01-07
US8162505B2 (en) 2012-04-24
BE1017269A3 (nl) 2008-05-06
PL2059717T3 (pl) 2015-10-30
DK2059717T3 (en) 2015-02-16
WO2008028679A1 (en) 2008-03-13
ES2530399T3 (es) 2015-03-02

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